Revolver



(No Model.)

J. T. SMITH. REVOLVm N0. 530,730. Patented Dec. 11, 1894;

Mrs TATES ATENT thrice.

JOHN '1. SMITH, or ROCKFALL, CONNECTICUT.

REVOLVER.

SPECIFICATION forming part of Letters Patent No. 530,730, dated December11, 1894.

Applica i n fi March 5, 1894. Serial No. 502,349- (No model.) I

To aZZ whom it may concern.-

Be it known that 1, JOHN T. SMITH, of Rockfall, in the county ofMiddlesex and State of Connecticut, have invented a new Improvement inConcealed-Hammer Revolvers; and I do hereby declare the following, whentaken in connection with accompanying drawings and the letters ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this specification,and represent, in

Figure 1, a view in side elevation of a revolver constructed inaccordance with my invention; Fig. 2, a view thereof with the cap orcover removed and showing parts of the frame in section; Fig. 3, abroken View of the bare frame; Fig. 4, a detached view of the cap orcover of the frame; Fig. 5, a rear view thereof in end elevation; Fig.6, an enlarged view of the safety-lock and the spring which operates thesame, showing the lock in its locked position by full lines and in itsunlocked position by broken lines.

My invention relates to an improvement in concealedhammer revolvers, theobject being to produce a simple, compact and effective arm, not liableto derangement, and constructed with particular reference to facilityand cheapness of manufacture and convenience of assemblance.

WVith these ends in view, my invention consists in a revolver havingcertain details of construction and combinations of parts as will behereinafter described and pointed out in the claims.

In carrying out my invention, I construct the plate or cap A of the armwith a flange A, extending inward from its upper edge, and closing inthat part of the frame lying directly forward of the safety-lock B, anddirectly over the concealed hammer C. By forming the said flangeintegral with the cap, I greatly facilitate and cheapen the manufactureof the arm over the prior construction in which a corresponding flangeis formed integral with the frame D of the arm, and interferes with thefree use of machine-tools in milling out the frame to receive thefeeding and firing mechanism of the arm.

It will be readily seen by inspection of Fig. 3 of the drawings thatunder my invention the diagonal chamber Din the frame is open at bothends, and readily admits milling or other tools. By leaving this flangeoff from the frame, and forming it integral with the plate or cap A, Iam also enabled to get into the frame readily for boring the socket Dreceiving the firing-pin E, the reciprocation of which is limited bymeans of the pin 6.

I am aware that it has been proposed heretofore to secure the advantagesofmy invention by making the flange A independent of the frame and capin which case it has had I frame of the arm, making the construction ofthe frame more difficult. The corresponding recoil shield on theopposite side of the arm is not shown, but it may be said that it isformed in the usual manner, integral withthe frame. I thus facilitateand cheapen the construction of the arm by forming the flange A and therecoil-shield A -integral with the cap or cover A of the frame, whereasin prior construct-ions the shield has been formed integral With theframe itself, and the flange either integral with the frame, or in theform of a small plate made independent of and secured thereto.

The safety lock B of my improved device projects slightly above thesurface of the frame and cap, and has a roughened periphery,which isengaged by the fingers for turning it on its horizontal pin B. Theforward end of this lock is constructed with a nose I), which takes intoa locking notch 0 formed in the rear upper corner of the concealedhammer O, the inner edge of the lock being cut away, as at b to permitthe hammer to be thrown back under it into its cocked position. I

In the rear portion of the look I forma transverse radial notch b havingsubstantially parallel upper and lower walls, which at their inner endsconverge and intersect. This notch receives the forward end of a flatsheetmetal spring F, located within a groove formed in the frame, andsecured in place by a pin f. The slot 6 just mentioned is radial withrespect to the pin B on which-the safetyi look B turns, and when thelock is in a position intermediate between its unlocked and lockedposition, the center of the notch and the center of the pin B aresubstantially intersected by the plane of the spring F. When therefore,the lock is-moved into its locked or unlocked position, the spring, theforward end of which engages with the intersecting converging wallsofthe notch, will be thrown to one side or the other, as may be, of thecenter of the pin,whereby the lock is held in its open or closedposition bya single spring, which for that purpose is moved to oppositesides of the center on which it turns. This construction is very simpleand effective. I need not further refer to the hammer C, more than tosay it is operated in being thrown into its firing position by a heavyspring 0, and is lifted back against the force of the said spring intoits cocked position, and there held by means of a sear G, pivotallymounted in the rear end of the trigger H, which is hung at its forwardend on a pin H.

The sear is provided with a pin, g, which is engaged by the lower end ofa spring G, the upper end of which is secured to the rear edge of theOperating-pawl I, which engagewith a circularly arranged series ofratchet teeth j, formed in the usual manner upon the rear end of thecylinder J, which is intermittently rotated by means of the said pawl,the lower end of which is pivotally connected with the rear end of thetrigger by means of a pin '5 on which the sear is also mounted.

A locking dog K, mounted in the forward end of the trigger, enterslocking notches J formed in the periphery of the rear end of thecylinder, which is locked in its several firing positions by the saiddog, the same being lifted'into the said notches by means of a smallspiral spring is.

The forward end of the trigger is constructed with a notch h, designedto receive one end of the trigger spring L, which is located in achamber L open at both ends, formed in the base of the trigger-guard Dwhich in fact constitutes a part of the frame D. Instead of boring anopening from the inside of the guard forward to receive this spring, Ibegin at the forward end of the base of the guard, and bore rearwardinto the chamber D of the frame. I then insert the trigger spring intothis opening, and hold the same therein by means of a screw-plug L. Thisprovision for the trigger spring is inexpensive and convenient, andenables the spring to be removed and replaced at pleasure withoutdisturbing any other part of the arm.

The removable pin M on which the cylinder J is mounted, is held in placefor the support of the said cylinder by means of a retaining dog N,which enters a wide circumferential recess M, formed in the pin, as seenin Fig. 2. The said dog is held in its operating position by means of asmall spiral spring 0, which under my invention has the additionalfunction of holding the friction pin P up to its work, the said pinbeing mounted in the frame D, and arranged to engage with the forwardend of the cylinder, and prevent the same from retrograde rotarymovement under the action of the pawl I, when the same is being drawnover the ratchet-teeth J preparatory to being successively engaged withthem for the rotation of the cylinder. Under the construction lastmentioned I make the spring 0, perform the two-fold function ofoperating the retainingdog N and the friction pin P, whereby siniplicityof construction and fewness of parts result.

It is obvious that in carrying out my invention some changes from theparticular construction herein shown and described may be made, and Iwould therefore have it understood that I do not limit myself to theparticular construction herein shown and de scribed, but hold myself atliberty to make such changes as fairly fall within the spirit of myinvention.

Having fully described my invention, what I I claim as new, and desireto secure by Letters Patent, is- 1. The combination with the frame andth other instrumentalities of a revolver, of a cap. 1 or cover fitted tothe said frame, and con- .1

shield, substantially as described.

2. The combination with the frame and the other instrumentalities of arevolver, of a cap or cover fitted to the said frame, and provided uponits upper edge with an inwardly projecting flange, and upon its forwardedge with a recoil-shield, the said flange and shield bein g formedintegral with the cap or cover substantially as described.

3. In a revolver, the combination with a frame having a spring-chamberformed in the base of its trigger-guard and open at both ends, of atrigger, a trigger spring located in the said chamberin front of thetrigger, and engaging at its rear end therewith, and a screw-pluglocated in the forward end of the said chamber for holding thetrigger-spring in place therein, substantially as described.

4. In a revolver, the combination with the cylinder, of a cylinder pinconstructed with a circumferential recess, a retaining-dog entering thesaid recess for holding the pin in position, a friction pin mounted inthe frame, and arranged to engage with the forward end of the cylinderfor preventing the rotary retrograde movement thereof, and a springengaging with the said pin and dog, and compelling both to perform theirfunctions, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN T. SMITH.

Witnesses:

ERNEST D. BRICK, GEORGE A. LEONARD.

